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author | arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2003-01-30 22:53:32 +0000 |
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committer | arpi <arpi@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2003-01-30 22:53:32 +0000 |
commit | da8975ee8e1c111f0fc19b3e8c760521365e7418 (patch) | |
tree | 6f1571d3382ff137a26a2fbdb8e9e86f54a56a23 /libmpcodecs/vf_denoise3d.c | |
parent | e7f9c836a1b25ae45da4c41a7e97dc602c9938f3 (diff) | |
download | mpv-da8975ee8e1c111f0fc19b3e8c760521365e7418.tar.bz2 mpv-da8975ee8e1c111f0fc19b3e8c760521365e7418.tar.xz |
new video filter: denoise3d - temporal&spatial noise reduction
patch by Daniel Moreno <comac2k@terra.es>
mpi/stride corrections and some bugfix by me
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9180 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libmpcodecs/vf_denoise3d.c')
-rw-r--r-- | libmpcodecs/vf_denoise3d.c | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/libmpcodecs/vf_denoise3d.c b/libmpcodecs/vf_denoise3d.c new file mode 100644 index 0000000000..9e5b3203c4 --- /dev/null +++ b/libmpcodecs/vf_denoise3d.c @@ -0,0 +1,270 @@ +/* + Copyright (C) 2003 Daniel Moreno <comac@comac.darktech.org> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <inttypes.h> +#include <math.h> + +#include "../config.h" +#include "../mp_msg.h" + +#ifdef HAVE_MALLOC_H +#include <malloc.h> +#endif + +#include "img_format.h" +#include "mp_image.h" +#include "vf.h" +#include "../libvo/fastmemcpy.h" + +#define PARAM1_DEFAULT 4.0 +#define PARAM2_DEFAULT 3.0 +#define PARAM3_DEFAULT 6.0 + +//===========================================================================// + +struct vf_priv_s { + int Coefs[4][512]; + unsigned char *Line; + mp_image_t *pmpi; +}; + + +/***************************************************************************/ + + +static int config(struct vf_instance_s* vf, + int width, int height, int d_width, int d_height, + unsigned int flags, unsigned int outfmt){ + + if(vf->priv->Line) free(vf->priv->Line); + vf->priv->Line = malloc(width); + vf->priv->pmpi=NULL; +// vf->default_caps &= !VFCAP_ACCEPT_STRIDE; + + return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt); +} + + +void uninit(struct vf_instance_s* vf) +{ + free(vf->priv->Line); +} + + +#define LowPass(Prev, Curr, Coef) (((Prev)*Coef[Prev - Curr] + (Curr)*(65536-(Coef[Prev - Curr]))) / 65536) + +static void deNoise(unsigned char *Frame, // mpi->planes[x] + unsigned char *FramePrev, // pmpi->planes[x] + unsigned char *FrameDest, // dmpi->planes[x] + unsigned char *LineAnt, // vf->priv->Line (width bytes) + int W, int H, int sStride, int pStride, int dStride, + int *Horizontal, int *Vertical, int *Temporal) +{ + int X, Y; + int sLineOffs = 0, pLineOffs = 0, dLineOffs = 0; + unsigned char PixelAnt; + + /* First pixel has no left nor top neightbour. Only previous frame */ + LineAnt[0] = PixelAnt = Frame[0]; + FrameDest[0] = LowPass(FramePrev[0], LineAnt[0], Temporal); + + /* Fist line has no top neightbour. Only left one for each pixel and + * last frame */ + for (X = 1; X < W; X++) + { + PixelAnt = LowPass(PixelAnt, Frame[X], Horizontal); + LineAnt[X] = PixelAnt; + FrameDest[X] = LowPass(FramePrev[X], LineAnt[X], Temporal); + } + + for (Y = 1; Y < H; Y++) + { + sLineOffs += sStride, pLineOffs += pStride, dLineOffs += dStride; + /* First pixel on each line doesn't have previous pixel */ + PixelAnt = Frame[sLineOffs]; + LineAnt[0] = LowPass(LineAnt[0], PixelAnt, Vertical); + FrameDest[dLineOffs] = LowPass(FramePrev[pLineOffs], LineAnt[0], Temporal); + + for (X = 1; X < W; X++) + { + /* The rest are normal */ + PixelAnt = LowPass(PixelAnt, Frame[sLineOffs+X], Horizontal); + LineAnt[X] = LowPass(LineAnt[X], PixelAnt, Vertical); + FrameDest[dLineOffs+X] = LowPass(FramePrev[pLineOffs+X], LineAnt[X], Temporal); + } + } +} + + + +static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){ + int cw= mpi->w >> mpi->chroma_x_shift; + int ch= mpi->h >> mpi->chroma_y_shift; + int W = mpi->w, H = mpi->h; + + mp_image_t *dmpi=vf_get_image(vf->next,mpi->imgfmt, + MP_IMGTYPE_IP, MP_IMGFLAG_ACCEPT_STRIDE, + mpi->w,mpi->h); + + if(!dmpi) return 0; + if (!vf->priv->pmpi) vf->priv->pmpi=mpi; + + deNoise(mpi->planes[0], vf->priv->pmpi->planes[0], dmpi->planes[0], + vf->priv->Line, W, H, + mpi->stride[0], vf->priv->pmpi->stride[0], dmpi->stride[0], + vf->priv->Coefs[0] + 256, + vf->priv->Coefs[0] + 256, + vf->priv->Coefs[1] + 256); + deNoise(mpi->planes[1], vf->priv->pmpi->planes[1], dmpi->planes[1], + vf->priv->Line, cw, ch, + mpi->stride[1], vf->priv->pmpi->stride[1], dmpi->stride[1], + vf->priv->Coefs[2] + 256, + vf->priv->Coefs[2] + 256, + vf->priv->Coefs[3] + 256); + deNoise(mpi->planes[2], vf->priv->pmpi->planes[2], dmpi->planes[2], + vf->priv->Line, cw, ch, + mpi->stride[2], vf->priv->pmpi->stride[2], dmpi->stride[2], + vf->priv->Coefs[2] + 256, + vf->priv->Coefs[2] + 256, + vf->priv->Coefs[3] + 256); + + vf->priv->pmpi=mpi; // save reference image + return vf_next_put_image(vf,dmpi); +} + +//===========================================================================// + +static int query_format(struct vf_instance_s* vf, unsigned int fmt){ + switch(fmt) + { + case IMGFMT_YV12: + case IMGFMT_I420: + case IMGFMT_IYUV: + case IMGFMT_YVU9: + case IMGFMT_444P: + case IMGFMT_422P: + case IMGFMT_411P: + return vf_next_query_format(vf, fmt); + } + return 0; +} + + +#define ABS(A) ( (A) > 0 ? (A) : -(A) ) + +static void PrecalcCoefs(int *Ct, double Dist25) +{ + int i; + double Gamma, Simil; + + Gamma = log(0.25) / log(1.0 - Dist25/255.0); + + for (i = -256; i <= 255; i++) + { + Simil = 1.0 - ABS(i) / 255.0; + Ct[256+i] = pow(Simil, Gamma) * 65536; + } +} + + +static int open(vf_instance_t *vf, char* args){ + double LumSpac, LumTmp, ChromSpac, ChromTmp; + double Param1, Param2, Param3; + + vf->config=config; + vf->put_image=put_image; + vf->query_format=query_format; + vf->uninit=uninit; + vf->priv=malloc(sizeof(struct vf_priv_s)); + memset(vf->priv, 0, sizeof(struct vf_priv_s)); + + if (args) + { + switch(sscanf(args, "%lf:%lf:%lf", + &Param1, &Param2, &Param3 + )) + { + case 0: + LumSpac = PARAM1_DEFAULT; + LumTmp = PARAM3_DEFAULT; + + ChromSpac = PARAM2_DEFAULT; + ChromTmp = LumTmp * ChromSpac / LumSpac; + break; + + case 1: + LumSpac = Param1; + LumTmp = PARAM3_DEFAULT * Param1 / PARAM1_DEFAULT; + + ChromSpac = PARAM2_DEFAULT * Param1 / PARAM1_DEFAULT; + ChromTmp = LumTmp * ChromSpac / LumSpac; + break; + + case 2: + LumSpac = Param1; + LumTmp = PARAM3_DEFAULT * Param1 / PARAM1_DEFAULT; + + ChromSpac = Param2; + ChromTmp = LumTmp * ChromSpac / LumSpac; + break; + + case 3: + LumSpac = Param1; + LumTmp = Param3; + + ChromSpac = Param2; + ChromTmp = LumTmp * ChromSpac / LumSpac; + break; + + default: + LumSpac = PARAM1_DEFAULT; + LumTmp = PARAM3_DEFAULT; + + ChromSpac = PARAM2_DEFAULT; + ChromTmp = LumTmp * ChromSpac / LumSpac; + } + } + else + { + LumSpac = PARAM1_DEFAULT; + LumTmp = PARAM3_DEFAULT; + + ChromSpac = PARAM2_DEFAULT; + ChromTmp = LumTmp * ChromSpac / LumSpac; + } + + PrecalcCoefs(vf->priv->Coefs[0], LumSpac); + PrecalcCoefs(vf->priv->Coefs[1], LumTmp); + PrecalcCoefs(vf->priv->Coefs[2], ChromSpac); + PrecalcCoefs(vf->priv->Coefs[3], ChromTmp); + + return 1; +} + +vf_info_t vf_info_denoise3d = { + "3D Denoiser (variable lowpass filter)", + "denoise3d", + "Daniel Moreno", + "", + open +}; + +//===========================================================================// |